Just to let you know that despite also being named Riley I didn't figure it out like Region Riley did. I thought that the reflector was also some sort of add on. Maybe calling it a replacement part or some such would clarify for the rest of us.
Ordered two sets earlier today despite my ignorance!

Riley

Quote:

Originally Posted by neduro

As Region Riley explained, the mirror includes the reflector by default.

The goal of making the glass piece available separately is to do consumers a favor, by making the reflector available in the event it got broken somehow. The arm is guaranteed forever, but if you whack it hard enough, I'm sure it is possible to break the glass (although I haven't done so yet). Making the glass available separately would avoid you having to buy another $25 mirror in that event, when all you needed was the glass insert.